Also, Mike Kelly and his associate Laura Hypponen from boutique chartered accountancy firm Northern Aliance have been contracted as for consultant business affairs services.
Seifert-Stock fills an opening left by the departure of Lizzie Francke, who left EM Media as executive producer for film in late November to join the UK Film Council's Development Fund.
Seifert-Stock comes from Medienboard Berlin-Brandenburg, where she advised new talent about all aspects of funding. She previously worked as a film programmer, publicist and screenwriter.
She said: 'I am delighted to be joining EM Media and am excited about working with the region's new and emerging talent. The East Midlands already has a notable reputation as the home of some of the UK's most original filmmakers and I hope that the work I do here will ensure that talent are given opportunities to thrive within this most creative of regions. '
Debbie Williams, chief executive of EM Media, said: 'We are thrilled to announce these new appointments to EM Media and very much look forward to working with Anna to develop the region's burgeoning talent pool, and with Mike and Laura to ensure the very best deal for all our investments.'
EM Media's recent projects include Unmade Beds, Donkey Punch, Control, This Is England and Brothers Of the Head.